TP: offset printing; p. 2-3: offset printing; p. [4]: offset printing., Title page: in the upper left corner there is a purple stamp: "55"., Title page: in the upper left corner there is a purple, round stamp: "Instytut Fryderyka Chopina" with handwritten "781/369" in red and black ink., Title page: "62. - - Wojak" is underlined with red crayon., Page 2: at the bottom of the page there is a grey, round stamp: "BIBLIOTEKA | NARODOWY INSTYTUT FRYDERYKA CHOPINA" and handwritten "369/n" in pencil., Page [4] (the last page): at the top the page there is a grey, round stamp: "BIBLIOTEKA | NARODOWY INSTYTUT FRYDERYKA CHOPINA"
